[PATCH] vsprintf: fix build warning

From: Arnd Bergmann
Date: Fri Jul 06 2018 - 09:48:03 EST

The have_filled_random_ptr_key variable was recently removed,
but then reappeared with another patch, presumably after an
incorrect rebase:

lib/vsprintf.c:1668:13: error: 'have_filled_random_ptr_key' defined but not used [-Werror=unused-variable]

This removes it again.

Fixes: 85f4f12d5139 ("vsprintf: Replace memory barrier with static_key for random_ptr_key update")
Fixes: bfe80ed3d7c7 ("vsprintf: add command line option debug_boot_weak_hash")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
lib/vsprintf.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index cdc2c355dff5..5fe18ac4d37c 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1665,7 +1665,6 @@ static int __init debug_boot_weak_hash_enable(char *str)
early_param("debug_boot_weak_hash", debug_boot_weak_hash_enable);

-static bool have_filled_random_ptr_key __read_mostly;
static siphash_key_t ptr_key __read_mostly;

static void enable_ptr_key_workfn(struct work_struct *work)